The subs and box used to be my auto sounds top installers personal set. the box was made by him, it is 3/4" MDF. Here is what it looks like.
http://www.grandprixforums.net/trann...tml#post686128
Then I just made a cardboard template to put across the front to fill the gaps. So the front is custom made.
I was thinking of doing it in that side space as well. But for the deal I got on subs and amp I couldnt pass it up.